Arm & Hammer Clean Burst Moisture Absorber & Odor Eliminator Tubs, 14 oz. 3-Pack — Long‑Lasting Moisture Control & Fresh Scent

Arm & Hammer Clean Burst Moisture Absorber and Odor Eliminator tubs are a simple, low-effort way to attract and trap excess moisture and reduce musty odors in small spaces.

These 14 oz. tubs (3-pack) use moisture-absorbing crystals to pull humidity from the air, helping prevent stale smells and damp-related discomfort. Place a tub where dampness collects—bathrooms, closets, laundry rooms, or mudrooms—and the crystals dissolve as they capture moisture; when they’re gone, replace the tub. The Clean Burst scent option adds a light, fresh aroma while the fragrance-free option keeps spaces neutral. Follow the included directions and keep tubs away from children and pets.

How quickly will a tub reduce damp smells?

Results are typically noticeable within days as the moisture-absorbing crystals begin collecting humidity and airborne particles that carry odors. The time needed depends on room size, initial humidity, and airflow; smaller, enclosed areas will show faster improvement. For persistent or large spaces, use multiple tubs spaced around the area.

• Noticeable odor reduction often within 48–72 hours
• Works faster in small, enclosed rooms
• Use more tubs for basements or open-plan areas

How do I set up and replace the moisture absorber tub?

Setup is straightforward: open the canister, pour the provided crystals into the container, secure the lid, and place the tub on a flat surface where humidity is a problem. The crystals will slowly liquefy as they collect moisture; when they have completely dissolved, discard the tub according to label instructions and replace it with a new one.

• Open canister, pour crystals in, then close lid
• Place upright on a flat, stable surface
• Replace when crystals fully dissolve (up to ~60 days)

Where should I use these tubs for best effect?

These tubs are made for small to medium enclosed spaces that are prone to excess moisture and stagnant air. Common places include closets, bathrooms, laundry rooms, shoe cabinets, and camper storage. Spread tubs across different zones in a larger area for even coverage and to prevent isolated pockets of dampness.

• Bathrooms, especially those without strong ventilation
• Closets and shoe storage to reduce mildew and odor
• Laundry rooms, basements, RVs, and storage areas

What scent options and longevity can I expect?

Arm & Hammer offers these tubs in Clean Burst scent for a subtle freshening effect or a Fragrance Free version for a neutral approach. Each 14 oz. tub is designed to provide ongoing moisture control for up to about 60 days, though lifespan varies with temperature and humidity levels: warmer or more humid spaces may shorten duration.

• Available in Clean Burst scent or Fragrance Free
• Approximately up to 60 days per tub, variable by conditions
• Replace sooner in very damp or high-temperature rooms

Who this is for: If you live in a humid climate, have limited ventilation, or need a low-maintenance way to control musty odors in enclosed spaces, these Arm & Hammer tubs are a practical choice. They’re suited to renters, homeowners, and RV owners who want a compact, no-plug solution for lowering localized humidity and keeping small areas smelling fresher without sprays or electricity.